As we talked about earlier, Spiceworks is not open source. That said, the company has welcomed extension development with open arms. These extensions don't just come from users, many vendors have integration into the Spiceworks platform and have plugins to do a myriad of functions that Spiceworks doesn't do out of the box.
Luckily for us users, Spiceworks has all these extensions in one handy place so you can get them easily:
http://community.spiceworks.com/extensions
Or, you can just mouse over the Community link at the top of any page in your Spiceworks install and click on the Extensions Center link under the Spiceworks column.
The Extensions page you land on is pretty full of information. At the top, you will see the four main categories:
Plugins
Reports
Scripts
Language Packs
Let's look at each one of these sections.